Abstract: Essential oils from the aerial parts of Teucrium persicum Boiss. (Labiatae), collected in 3 stages (pre-flowering, flowering and post-flowering) from plants grown in the Fars province of Iran were obtained by steam distillation. The chemical composition of the oils were analyzed by GC-MS. Analysis of the chemical profile of the isolated oils revealed the presence of >80 compounds, mainly sesquiterpene hydrocarbons, oxygenated monoterpenes and sesquiterpenes. They contained α-terpinyl acetate, α-cadinene, 1,4-cadinadiene, linalool and cadinol. Average yield was 1%. The studied essential oils showed good antioxidant activities as calculated by 3 in vitro assays: DPPH radical scavenging, Ferric Reducing Power Assay (FRAP) and Reducing Power (RP).
Hamid Reza Monsef-Esfahani, Abdolhossein Miri, Mohsen Amini, Yaghoub Amanzadeh, Abbas Hadjiakhoondi, Reza Hajiaghaee and Yousef Ajani, 2010. Seasonal Variation in the Chemical Composition, Antioxidant Activity and Total Phenolic Content of Teucrium persicum Boiss. Essential Oils. Research Journal of Biological Sciences, 5: 492-498.